<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="max">
        <div id="center">
            <button type="button" class="layui-btn  layui-btn-normal">一个标准的按钮</button>
        </div>
    </div>

</body>
</html>